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Title:
DREDGING CONVEYANCE SYSTEM AND DREDGING CONVEYANCE METHOD
Document Type and Number:
Japanese Patent JP2008261090
Kind Code:
A
Abstract:

To provide a technology of enabling dredging operations to be performed in a lower-powered manner with a high degree of efficiency without use of large-scale equipment.

This dredging conveyance system comprises: a dredging section 10 which performs dredging by utilizing a difference between a water level of a dam lake and that of the inside of a water-level difference making water tank 14; a conveyance section 40 for pumping up sediment water, from which refuse is removed by means of a refuse screen 14b in the water-level difference making water tank 14, by using a scouring pump 22, so as to convey the sediment water to a dam body D through a carrier pipe 24; a dam-body crossing section 30 which transfers the sediment water into a water receiving tank 34 by exceeding a difference of elevation between the water level in the water receiving tank 34 and the top section of the dam body D through the use of atmospheric pressure (natural energy) by means of the water receiving tank 34 installed outside the dam body D; and a downstream conveyance section 40 which discharges the sediment water to a low place from the water receiving tank 34.


Inventors:
SASE TOSHIJI
SASAKI AKIRA
KOJIMA NORIAKI
MINAMI HIRONOBU
SATO TSUTOMU
MASUI KENJI
SATO SABURO
Application Number:
JP2007102365A
Publication Date:
October 30, 2008
Filing Date:
April 10, 2007
Export Citation:
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Assignee:
DAMDRE CORP
International Classes:
E02F3/88; E02B9/00
Domestic Patent References:
JP2003138598A2003-05-14
JP2004092077A2004-03-25
JP2004522877A2004-07-29
JP2007002437A2007-01-11
JPH08158397A1996-06-18
Attorney, Agent or Firm:
Takahiro Yamazaki